atpl/oxford/met/ch2 Flashcards
The barometric Pressure at the airfield datum point is known as:
QFE
The instrument that gives a continuous printed reading and record of the atmospheric pressure is:
barograph
The pressure of the atmosphere:
decreases at a decreasing rate as height increases
When considering the actual tropopause which statement is correct:
it is low over the poles and high over the equator
Atmospheric pressure may be defined as:
the force per unit area exerted by the atmosphere on any surface with which it is in contact
The QFF is the atmospheric pressure:
at a place where the reading is taken corrected to MSL taking into account the prevailing temperature conditio
The pressure of 1013.25 hPa is known as::
standard pressure setting
The aircraft altimeter will read zero at aerodrome level with which pressure setting set on the altimeter sub scale:
QFE
The aerodrome QFE is:
the aerodrome barometric pressure.
When an altimeter sub scale is set to the aerodrome QFE, the altimeter reads:
zero at the aerodrome reference point
The aerodrome QNH is the aerodrome barometric pressure:
corrected to mean sea level assuming standard atmospheric conditions exist
A line drawn on a chart joining places having the same barometric pressure at the same level and at the same time is:
an isobar
An isobar on a meteorological chart joins all places having the same:
QFF
Pressure will _________ with increase of height and will be about __________ at 10000 ft and ___________ - at 30000 ft.
Decrease/ 700 mb/ 300 mb
An airfield in England is 100m above sea level, QFF is 1030 hPa, temperature at the surface is -15°C. What is the value of QNH?
Less than 1030 hPa